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< 1 2 3 4 5 ... 44 45 46 >Solved |
Name |
Tags |
Solutions |
Index |
Contest |
Type |
Points |
Tutorial |
Rating Level |
|---|---|---|---|---|---|---|---|---|---|
| 305 | Lamps in a Line | *special math | Statement | E | Unknown Language Round 3 {100} | PROGRAMMING | 1800 | ||
| 161 | Polynom | *special implementation | Statement | F | Unknown Language Round 3 {100} | PROGRAMMING | 2000 | ||
| 143 | Name the album | *special data structures implementation | Statement | G | Unknown Language Round 3 {100} | PROGRAMMING | 2000 | ||
| 93 | Battleship | *special dfs and similar implementation | Statement | H | Unknown Language Round 3 {100} | PROGRAMMING | 2200 | ||
| 76 | Interval Coloring | *special greedy math | Statement | J | Unknown Language Round 3 {100} | PROGRAMMING | 2400 | ||
| 4401 | Homework | greedy | Statement | A | Codeforces Beta Round 79 (Div. 1 Only) {101} | PROGRAMMING | Codeforces Beta Round 79, editoral | 1300 | |
| 3223 | Buses | binary search data structures dp | Statement | B | Codeforces Beta Round 79 (Div. 1 Only) {101} | PROGRAMMING | Codeforces Beta Round 79, editoral | 1900 | |
| 844 | Vectors | implementation math | Statement | C | Codeforces Beta Round 79 (Div. 1 Only) {101} | PROGRAMMING | Codeforces Beta Round 79, editoral | 2100 | |
| 811 | Castle | dp greedy probabilities sortings trees | Statement | D | Codeforces Beta Round 79 (Div. 1 Only) {101} | PROGRAMMING | Codeforces Beta Round 79, editoral | 2300 | |
| 630 | Candies and Stones | divide and conquer dp | Statement | E | Codeforces Beta Round 79 (Div. 1 Only) {101} | PROGRAMMING | Codeforces Beta Round 79, editoral | 2400 | |
| 32374 | Sum of Digits | implementation | Statement | B | Codeforces Beta Round 79 (Div. 2 Only) {102} | PROGRAMMING | Codeforces Beta Round 79, editoral | 1100 | |
| 3448 | Clothes | brute force | Statement | A | Codeforces Beta Round 79 (Div. 2 Only) {102} | PROGRAMMING | Codeforces Beta Round 79, editoral | 1300 | |
| 6675 | Testing Pants for Sadness | greedy implementation math | Statement | A | Codeforces Beta Round 80 (Div. 1 Only) {103} | PROGRAMMING | Tutorial | 1200 | |
| 10974 | Cthulhu | dfs and similar dsu graphs | Statement | B | Codeforces Beta Round 80 (Div. 1 Only) {103} | PROGRAMMING | Tutorial | 1600 | |
| 1073 | Russian Roulette | constructive algorithms greedy | Statement | C | Codeforces Beta Round 80 (Div. 1 Only) {103} | PROGRAMMING | Tutorial | 1900 | |
| 2607 | Time to Raid Cowavans | brute force data structures sortings | Statement | D | Codeforces Beta Round 80 (Div. 1 Only) {103} | PROGRAMMING | Tutorial | 2200 | |
| 1099 | Buying Sets | flows graph matchings | Statement | E | Codeforces Beta Round 80 (Div. 1 Only) {103} | PROGRAMMING | Tutorial | 2700 | |
| 17301 | Blackjack | implementation | Statement | A | Codeforces Beta Round 80 (Div. 2 Only) {104} | PROGRAMMING | Codeforces Beta Round #80 - неофициальный разбор | 900 | |
| 2036 | Transmigration | implementation | Statement | A | Codeforces Beta Round 81 {105} | PROGRAMMING | Tutorial | 1600 | |
| 915 | Dark Assembly | brute force probabilities | Statement | B | Codeforces Beta Round 81 {105} | PROGRAMMING | Tutorial | 1800 | |
| 408 | Item World | brute force implementation sortings | Statement | C | Codeforces Beta Round 81 {105} | PROGRAMMING | Tutorial | 2100 | |
| 238 | Lift and Throw | brute force | Statement | E | Codeforces Beta Round 81 {105} | PROGRAMMING | Tutorial | 2400 | |
| 149 | Entertaining Geodetics | brute force dsu implementation | Statement | D | Codeforces Beta Round 81 {105} | PROGRAMMING | Tutorial | 2600 | |
| 6914 | Choosing Laptop | brute force implementation | Statement | B | Codeforces Beta Round 82 (Div. 2) {106} | PROGRAMMING | Solutions for Codeforces Beta Round #82 (Div. 2) | 1100 | |
| 8603 | Card Game | implementation | Statement | A | Codeforces Beta Round 82 (Div. 2) {106} | PROGRAMMING | Solutions for Codeforces Beta Round #82 (Div. 2) | 1200 | |
| 7186 | Buns | dp | Statement | C | Codeforces Beta Round 82 (Div. 2) {106} | PROGRAMMING | Solutions for Codeforces Beta Round #82 (Div. 2) | 1600 | |
| 1482 | Treasure Island | brute force implementation | Statement | D | Codeforces Beta Round 82 (Div. 2) {106} | PROGRAMMING | Solutions for Codeforces Beta Round #82 (Div. 2) | 1700 | |
| 1015 | Space Rescuers | geometry ternary search | Statement | E | Codeforces Beta Round 82 (Div. 2) {106} | PROGRAMMING | Solutions for Codeforces Beta Round #82 (Div. 2) | 2200 | |
| 5983 | Dorm Water Supply | dfs and similar graphs | Statement | A | Codeforces Beta Round 83 (Div. 1 Only) {107} | PROGRAMMING | Tutorial | 1500 | |
| 4349 | Basketball Team | combinatorics dp math probabilities | Statement | B | Codeforces Beta Round 83 (Div. 1 Only) {107} | PROGRAMMING | Tutorial | 1700 | |
| 512 | Crime Management | dp graphs matrices | Statement | D | Codeforces Beta Round 83 (Div. 1 Only) {107} | PROGRAMMING | Tutorial | 2400 | |
| 495 | Arrangement | bitmasks dp | Statement | C | Codeforces Beta Round 83 (Div. 1 Only) {107} | PROGRAMMING | Tutorial | 2500 | |
| 157 | Darts | geometry probabilities | Statement | E | Codeforces Beta Round 83 (Div. 1 Only) {107} | PROGRAMMING | Tutorial | 2600 | |
| 10434 | Palindromic Times | implementation strings | Statement | A | Codeforces Beta Round 83 (Div. 2 Only) {108} | PROGRAMMING | Editorial: Codeforces Beta Round #83 (Dima) | 1100 | |
| 2756 | Datatypes | math sortings | Statement | B | Codeforces Beta Round 83 (Div. 2 Only) {108} | PROGRAMMING | Editorial: Codeforces Beta Round #83 (Dima) | 1500 | |
| 20089 | Lucky Sum of Digits | brute force implementation | Statement | A | Codeforces Beta Round 84 (Div. 1 Only) {109} | PROGRAMMING | Tutorial | 1200 | |
| 4186 | Lucky Tree | dp dsu trees | Statement | C | Codeforces Beta Round 84 (Div. 1 Only) {109} | PROGRAMMING | Tutorial | 2000 | |
| 914 | Lucky Sorting | constructive algorithms sortings | Statement | D | Codeforces Beta Round 84 (Div. 1 Only) {109} | PROGRAMMING | Tutorial | 2000 | |
| 1808 | Lucky Probability | brute force probabilities | Statement | B | Codeforces Beta Round 84 (Div. 1 Only) {109} | PROGRAMMING | Tutorial | 2000 | |
| 143 | Lucky Interval | brute force math | Statement | E | Codeforces Beta Round 84 (Div. 1 Only) {109} | PROGRAMMING | Tutorial | 2600 | |
| 11096 | Lucky String | constructive algorithms strings | Statement | B | Codeforces Beta Round 84 (Div. 2 Only) {110} | PROGRAMMING | Codeforces Beta Round #84 - Analysis | 1100 | |
| 204400 | Nearly Lucky Number | implementation | Statement | A | Codeforces Beta Round 84 (Div. 2 Only) {110} | PROGRAMMING | Codeforces Beta Round #84 - Analysis | 800 | |
| 5205 | Petya and Inequiations | greedy | Statement | A | Codeforces Beta Round 85 (Div. 1 Only) {111} | PROGRAMMING | Codeforces Beta Round #85: Разбор задач | 1500 | |
| 4152 | Petya and Divisors | binary search data structures number theory | Statement | B | Codeforces Beta Round 85 (Div. 1 Only) {111} | PROGRAMMING | Codeforces Beta Round #85: Разбор задач | 1900 | |
| 1613 | Petya and Spiders | bitmasks dp dsu | Statement | C | Codeforces Beta Round 85 (Div. 1 Only) {111} | PROGRAMMING | Codeforces Beta Round #85: Разбор задач | 2100 | |
| 931 | Petya and Coloring | combinatorics dp | Statement | D | Codeforces Beta Round 85 (Div. 1 Only) {111} | PROGRAMMING | Codeforces Beta Round #85: Разбор задач | 2300 | |
| 74 | Petya and Rectangle | Statement | E | Codeforces Beta Round 85 (Div. 1 Only) {111} | PROGRAMMING | Codeforces Beta Round #85: Разбор задач | 3000 | ||
| 4587 | Petya and Square | implementation math | Statement | B | Codeforces Beta Round 85 (Div. 2 Only) {112} | PROGRAMMING | Разбор CFBR #85 Div. 1 C, D | 1300 | |
| 294234 | Petya and Strings | implementation strings | Statement | A | Codeforces Beta Round 85 (Div. 2 Only) {112} | PROGRAMMING | Разбор CFBR #85 Div. 1 C, D | 900 | |
| 2618 | Grammar Lessons | implementation strings | Statement | A | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 1600 | |
| 3329 | Petr# | brute force data structures hashing strings | Statement | B | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 1900 | |
| 1488 | Double Happiness | brute force math number theory | Statement | C | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 2200 | |
| 923 | Museum | math matrices probabilities | Statement | D | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 2500 | |
| 169 | Sleeping | combinatorics implementation math | Statement | E | Codeforces Beta Round 86 (Div. 1 Only) {113} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 2600 | |
| 15212 | Cifera | math | Statement | A | Codeforces Beta Round 86 (Div. 2 Only) {114} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 1100 | |
| 4310 | PFAST Inc. | bitmasks brute force graphs | Statement | B | Codeforces Beta Round 86 (Div. 2 Only) {114} | PROGRAMMING | Codeforces Beta Round #86 Editorial | 1500 | |
| 44750 | Party | dfs and similar graphs trees | Statement | A | Codeforces Beta Round 87 (Div. 1 Only) {115} | PROGRAMMING | Tutorial | 1300 | |
| 2856 | Lawnmower | greedy sortings | Statement | B | Codeforces Beta Round 87 (Div. 1 Only) {115} | PROGRAMMING | Tutorial | 1600 | |
| 698 | Plumber | math | Statement | C | Codeforces Beta Round 87 (Div. 1 Only) {115} | PROGRAMMING | Tutorial | 2400 | |
| 2295 | Linear Kingdom Races | data structures dp | Statement | E | Codeforces Beta Round 87 (Div. 1 Only) {115} | PROGRAMMING | Tutorial | 2400 | |
| 476 | Unambiguous Arithmetic Expression | dp expression parsing | Statement | D | Codeforces Beta Round 87 (Div. 1 Only) {115} | PROGRAMMING | Tutorial | 2600 | |
| 14685 | Little Pigs and Wolves | greedy implementation | Statement | B | Codeforces Beta Round 87 (Div. 2 Only) {116} | PROGRAMMING | Codeforces Beta #87 Editorial | 1300 | |
| 180354 | Tram | implementation | Statement | A | Codeforces Beta Round 87 (Div. 2 Only) {116} | PROGRAMMING | Codeforces Beta #87 Editorial | 800 | |
| 2234 | Elevator | implementation math | Statement | A | Codeforces Beta Round 88 {117} | PROGRAMMING | Codeforces Beta Round #88 (Editorial) | 1400 | |
| 1748 | Very Interesting Game | brute force number theory | Statement | B | Codeforces Beta Round 88 {117} | PROGRAMMING | Неофициальный разбор Codeforces Beta Round #88 | 1700 | |
| 3019 | Cycle | dfs and similar graphs | Statement | C | Codeforces Beta Round 88 {117} | PROGRAMMING | Неофициальный разбор Codeforces Beta Round #88 | 2000 | |
| 396 | Not Quick Transformation | divide and conquer math | Statement | D | Codeforces Beta Round 88 {117} | PROGRAMMING | Codeforces Beta Round #88 (Editorial) | 2400 | |
| 440 | Tree or not Tree | data structures divide and conquer implementation trees | Statement | E | Codeforces Beta Round 88 {117} | PROGRAMMING | Codeforces Beta Round #88 (Editorial) | 2800 | |
| 235744 | String Task | implementation strings | Statement | A | Codeforces Beta Round 89 (Div. 2) {118} | PROGRAMMING | Разбор задач. Codeforces beta round #89. | 1100 | |
| 35059 | Present from Lena | constructive algorithms implementation | Statement | B | Codeforces Beta Round 89 (Div. 2) {118} | PROGRAMMING | Разбор задач. Codeforces beta round #89. | 1100 | |
| 2894 | Fancy Number | brute force greedy sortings strings | Statement | C | Codeforces Beta Round 89 (Div. 2) {118} | PROGRAMMING | Editorial codeforces beta raund 89. | 1700 | |
| 21080 | Caesar's Legions | dp | Statement | D | Codeforces Beta Round 89 (Div. 2) {118} | PROGRAMMING | Разбор задач. Codeforces beta round #89. | 1800 | |
| 8840 | Bertown roads | dfs and similar graphs | Statement | E | Codeforces Beta Round 89 (Div. 2) {118} | PROGRAMMING | Разбор задач. Codeforces beta round #89. | 2100 | |
| 29750 | Epic Game | implementation | Statement | A | Codeforces Beta Round 90 {119} | PROGRAMMING | Codeforces Beta Round #90 (editorial) | 1000 | |
| 1145 | Before Exam | constructive algorithms implementation sortings | Statement | B | Codeforces Beta Round 90 {119} | PROGRAMMING | Разбор задачи E Codeforces Beta Round #90 | 1700 | |
| 1099 | Education Reform | dp | Statement | C | Codeforces Beta Round 90 {119} | PROGRAMMING | Разбор задачи E Codeforces Beta Round #90 | 2000 | |
| 667 | String Transformation | hashing strings | Statement | D | Codeforces Beta Round 90 {119} | PROGRAMMING | Codeforces Beta Round #90 (editorial) | 2500 | |
| 132 | Alternative Reality | geometry | Statement | E | Codeforces Beta Round 90 {119} | PROGRAMMING | Разбор задачи E Codeforces Beta Round #90 | 2800 | |
| 5713 | Elevator | brute force implementation math | Statement | A | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1000 | |
| 3999 | Winnie-the-Pooh and honey | implementation math | Statement | C | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1100 | |
| 3685 | Quiz League | implementation | Statement | B | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1100 | |
| 2108 | Three Sons | brute force | Statement | D | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1400 | |
| 4169 | Spiders | dp greedy trees | Statement | F | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1500 | |
| 3013 | Put Knight! | games | Statement | E | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1500 | |
| 721 | Boom | implementation | Statement | G | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1800 | |
| 1624 | Brevity is Soul of Wit | graph matchings | Statement | H | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 1900 | |
| 1031 | Minimum Sum | divide and conquer geometry sortings | Statement | J | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 2000 | |
| 321 | Luck is in Numbers | greedy | Statement | I | School Regional Team Contest, Saratov, 2011 {120} | PROGRAMMING | Tutorial for school regional team contest of Saratov | 2300 | |
| 10669 | Lucky Sum | implementation | Statement | A | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | Разбор задач | 1400 | |
| 2837 | Lucky Transformation | strings | Statement | B | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | Tutorial | 1600 | |
| 1472 | Lucky Permutation | brute force combinatorics number theory | Statement | C | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | Разбор задач | 2000 | |
| 2217 | Lucky Array | data structures | Statement | E | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | Разбор задач | 2300 | |
| 355 | Lucky Segments | binary search implementation two pointers | Statement | D | Codeforces Beta Round 91 (Div. 1 Only) {121} | PROGRAMMING | Tutorial | 2400 | |
| 152677 | Lucky Division | brute force number theory | Statement | A | Codeforces Beta Round 91 (Div. 2 Only) {122} | PROGRAMMING | BIT solution for Codeforces #91 E | 1000 | |
| 13345 | Lucky Substring | brute force implementation | Statement | B | Codeforces Beta Round 91 (Div. 2 Only) {122} | PROGRAMMING | BIT solution for Codeforces #91 E | 1100 | |
| 4071 | Prime Permutation | implementation number theory strings | Statement | A | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 1600 | |
| 1317 | Squares | math | Statement | B | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 1900 | |
| 1459 | String | string suffix structures | Statement | D | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 2300 | |
| 746 | Brackets | combinatorics dp greedy | Statement | C | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 2300 | |
| 825 | Maze | dfs and similar dp probabilities trees | Statement | E | Codeforces Beta Round 92 (Div. 1 Only) {123} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 2600 | |
| 44787 | The number of positions | math | Statement | A | Codeforces Beta Round 92 (Div. 2 Only) {124} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 1000 | |
| 4957 | Permutations | brute force combinatorics implementation | Statement | B | Codeforces Beta Round 92 (Div. 2 Only) {124} | PROGRAMMING | Codeforces Beta Round #92 - Analysis | 1400 | |
| 3766 | Simple XML | implementation | Statement | B | Codeforces Testing Round 2 {125} | PROGRAMMING | 1300 | ||
| 3281 | Measuring Lengths in Baden | math | Statement | A | Codeforces Testing Round 2 {125} | PROGRAMMING | 1400 | ||
| 1094 | Hobbits' Party | constructive algorithms greedy | Statement | C | Codeforces Testing Round 2 {125} | PROGRAMMING | 1700 | ||
| 458 | Two progressions | constructive algorithms greedy | Statement | D | Codeforces Testing Round 2 {125} | PROGRAMMING | 2000 | ||
| 1631 | MST Company | binary search graphs | Statement | E | Codeforces Testing Round 2 {125} | PROGRAMMING | 2400 | ||
| 25915 | Password | binary search dp hashing string suffix structures strings | Statement | B | Codeforces Beta Round 93 (Div. 1 Only) {126} | PROGRAMMING | Tutorial | 1800 | |
| 1605 | Hot Bath | binary search brute force math | Statement | A | Codeforces Beta Round 93 (Div. 1 Only) {126} | PROGRAMMING | Tutorial | 1900 | |
| 977 | Fibonacci Sums | dp math | Statement | D | Codeforces Beta Round 93 (Div. 1 Only) {126} | PROGRAMMING | Tutorial | 2200 | |
| 838 | E-reader Display | constructive algorithms greedy | Statement | C | Codeforces Beta Round 93 (Div. 1 Only) {126} | PROGRAMMING | Tutorial | 2200 | |
| 100 | Pills | brute force flows | Statement | E | Codeforces Beta Round 93 (Div. 1 Only) {126} | PROGRAMMING | Tutorial | 3100 | |
| 12772 | Wasted Time | geometry | Statement | A | Codeforces Beta Round 93 (Div. 2 Only) {127} | PROGRAMMING | Editorial for Codeforces Beta Round #93 | 1000 | |
| 10591 | Canvas Frames | implementation | Statement | B | Codeforces Beta Round 93 (Div. 2 Only) {127} | PROGRAMMING | Editorial for Codeforces Beta Round #93 | 1200 | |
| 3527 | Statues | dfs and similar | Statement | A | Codeforces Beta Round 94 (Div. 1 Only) {128} | PROGRAMMING | 3219 | 1500 | |
| 1295 | Numbers | constructive algorithms implementation | Statement | D | Codeforces Beta Round 94 (Div. 1 Only) {128} | PROGRAMMING | 3219 | 2000 | |
| 3307 | Games with Rectangle | combinatorics dp | Statement | C | Codeforces Beta Round 94 (Div. 1 Only) {128} | PROGRAMMING | 3219 | 2100 | |
| 2914 | String | brute force constructive algorithms hashing implementation string suffix structures strings | Statement | B | Codeforces Beta Round 94 (Div. 1 Only) {128} | PROGRAMMING | 3219 | 2200 | |
| 139 | Birthday | geometry math | Statement | E | Codeforces Beta Round 94 (Div. 1 Only) {128} | PROGRAMMING | 3219 | 2900 | |
| 14058 | Students and Shoelaces | brute force dfs and similar graphs implementation | Statement | B | Codeforces Beta Round 94 (Div. 2 Only) {129} | PROGRAMMING | Problem D of Beta Round 94 | 1200 | |
| 25491 | Cookies | implementation | Statement | A | Codeforces Beta Round 94 (Div. 2 Only) {129} | PROGRAMMING | Codeforces Beta Round #94 Editorial | 900 | |
| 1989 | Hexagonal numbers | *special implementation | Statement | A | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1300 | |
| 565 | Gnikool Ssalg | *special implementation strings | Statement | B | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1500 | |
| 540 | Decimal sum | *special | Statement | C | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1500 | |
| 428 | Exponentiation | *special | Statement | D | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1700 | |
| 323 | Tribonacci numbers | *special | Statement | E | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1800 | |
| 300 | CAPS LOCK ON | *special | Statement | G | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1800 | |
| 300 | Prime factorization | *special | Statement | F | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1900 | |
| 933 | Balanced brackets | *special | Statement | H | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 1900 | |
| 358 | Date calculation | *special | Statement | J | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 2300 | |
| 193 | Array sorting | *special sortings | Statement | I | Unknown Language Round 4 {130} | PROGRAMMING | Unknown Language Round #4: editorial | 2400 | |
| 102820 | cAPS lOCK | implementation strings | Statement | A | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Разбор Codeforces Beta Round #95 (Div.2) | 1100 | |
| 7604 | Opposites Attract | implementation math | Statement | B | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Some ideas for Round #95 (Div 2) | 1300 | |
| 12759 | The World is a Theatre | combinatorics math | Statement | C | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Разбор Codeforces Beta Round #95 (Div.2) | 1500 | |
| 5324 | Subway | dfs and similar graphs | Statement | D | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Some ideas for Round #95 (Div 2) | 1600 | |
| 2107 | Yet Another Task with Queens | sortings | Statement | E | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Разбор Codeforces Beta Round #95 (Div.2) | 1800 | |
| 788 | Present to Mom | binary search two pointers | Statement | F | Codeforces Beta Round 95 (Div. 2) {131} | PROGRAMMING | Some ideas for Round #95 (Div 2) | 2200 | |
| 2995 | Turing Tape | implementation | Statement | A | Codeforces Beta Round 96 (Div. 1) {132} | PROGRAMMING | Codeforces Beta Round #96: editorial | 1300 | |
| 2669 | Logo Turtle | dp | Statement | C | Codeforces Beta Round 96 (Div. 1) {132} | PROGRAMMING | Codeforces Beta Round #96: editorial | 1900 | |
| 774 | Piet | implementation | Statement | B | Codeforces Beta Round 96 (Div. 1) {132} | PROGRAMMING | Codeforces Beta Round #96: editorial | 2000 | |
| 742 | Constants in the language of Shakespeare | constructive algorithms dp greedy | Statement | D | Codeforces Beta Round 96 (Div. 1) {132} | PROGRAMMING | Codeforces Beta Round #96: editorial | 2100 | |
| 588 | Bits of merry old England | flows graphs | Statement | E | Codeforces Beta Round 96 (Div. 1) {132} | PROGRAMMING | Codeforces Beta Round #96: editorial | 2600 | |
| 9483 | Unary | implementation | Statement | B | Codeforces Beta Round 96 (Div. 2) {133} | PROGRAMMING | Deleted | 1200 | |
| 127253 | HQ9+ | implementation | Statement | A | Codeforces Beta Round 96 (Div. 2) {133} | PROGRAMMING | Deleted | 900 | |
| 4886 | Average Numbers | brute force implementation | Statement | A | Codeforces Testing Round 3 {134} | PROGRAMMING | 1300 | ||
| 2536 | Pairs of Numbers | brute force dfs and similar math number theory | Statement | B | Codeforces Testing Round 3 {134} | PROGRAMMING | 1800 | ||
| 598 | Swaps | constructive algorithms graphs greedy | Statement | C | Codeforces Testing Round 3 {134} | PROGRAMMING | 2200 | ||
| 8310 | Replacement | greedy implementation sortings | Statement | A | Codeforces Beta Round 97 (Div. 1) {135} | PROGRAMMING | Codeforces Beta Round #97: editorial | 1400 | |
| 2702 | Rectangle and Square | brute force geometry math | Statement | B | Codeforces Beta Round 97 (Div. 1) {135} | PROGRAMMING | Codeforces Beta Round #97: editorial | 1600 | |
| 1459 | Zero-One | constructive algorithms games greedy | Statement | C | Codeforces Beta Round 97 (Div. 1) {135} | PROGRAMMING | Codeforces Beta Round #97: editorial | 2000 | |
| 326 | Cycle | brute force dfs and similar implementation | Statement | D | Codeforces Beta Round 97 (Div. 1) {135} | PROGRAMMING | Codeforces Beta Round #97: editorial | 2400 | |
| 420 | Weak Subsequence | combinatorics | Statement | E | Codeforces Beta Round 97 (Div. 1) {135} | PROGRAMMING | Codeforces Beta Round #97: editorial | 2800 | |
| 5365 | Ternary Logic | implementation math | Statement | B | Codeforces Beta Round 97 (Div. 2) {136} | PROGRAMMING | Codeforces Beta Round #97: editorial | 1200 | |
| 149912 | Presents | implementation | Statement | A | Codeforces Beta Round 97 (Div. 2) {136} | PROGRAMMING | Codeforces Beta Round #97: editorial | 700 | |
| 7941 | Postcards and photos | implementation | Statement | A | Codeforces Beta Round 98 (Div. 2) {137} | PROGRAMMING | Codeforces Beta Round #98 (Div. 2): Editorial | 1000 | |
| 15238 | Permutation | greedy | Statement | B | Codeforces Beta Round 98 (Div. 2) {137} | PROGRAMMING | Codeforces Beta Round #98 (Div. 2): Editorial | 1100 | |
| 7868 | History | sortings | Statement | C | Codeforces Beta Round 98 (Div. 2) {137} | PROGRAMMING | Codeforces Beta Round #98 (Div. 2): Editorial | 1500 | |
| 1734 | Palindromes | dp strings | Statement | D | Codeforces Beta Round 98 (Div. 2) {137} | PROGRAMMING | Codeforces Beta Round #98 (Div. 2): Editorial | 1900 | |
| 1402 | Last Chance | data structures implementation strings | Statement | E | Codeforces Beta Round 98 (Div. 2) {137} | PROGRAMMING | Codeforces Beta Round #98 (Div. 2): Editorial | 2000 | |
| 2606 | Literature Lesson | implementation | Statement | A | Codeforces Beta Round 99 (Div. 1) {138} | PROGRAMMING | Codeforces Beta Round #99: editorial | 1600 | |
| 1114 | Digits Permutations | greedy | Statement | B | Codeforces Beta Round 99 (Div. 1) {138} | PROGRAMMING | Codeforces Beta Round #99: editorial | 2200 | |
| 618 | World of Darkraft | dp games | Statement | D | Codeforces Beta Round 99 (Div. 1) {138} | PROGRAMMING | Codeforces Beta Round #99: editorial | 2500 | |
| 978 | Mushroom Gnomes - 2 | binary search data structures probabilities sortings | Statement | C | Codeforces Beta Round 99 (Div. 1) {138} | PROGRAMMING | Codeforces Beta Round #99: editorial | 2500 | |
| 209 | Hellish Constraints | brute force dp two pointers | Statement | E | Codeforces Beta Round 99 (Div. 1) {138} | PROGRAMMING | Codeforces Beta Round #99: editorial | 2900 | |
| 38180 | Petr and Book | implementation | Statement | A | Codeforces Beta Round 99 (Div. 2) {139} | PROGRAMMING | Codeforces Beta Round #99: editorial | 1200 | |
| 1467 | Wallpaper | implementation math | Statement | B | Codeforces Beta Round 99 (Div. 2) {139} | PROGRAMMING | Codeforces Beta Round #99: editorial | 1600 | |
| 4392 | New Year Table | geometry math | Statement | A | Codeforces Round 100 {140} | PROGRAMMING | Codeforces Round #100: problem analysis | 1700 | |
| 4791 | New Year Snowmen | binary search data structures greedy | Statement | C | Codeforces Round 100 {140} | PROGRAMMING | Codeforces Round #100: problem analysis | 1800 | |
| 2320 | New Year Contest | greedy sortings | Statement | D | Codeforces Round 100 {140} | PROGRAMMING | Codeforces Round #100: problem analysis | 1800 | |
| 1760 | New Year Cards | brute force greedy implementation | Statement | B | Codeforces Round 100 {140} | PROGRAMMING | Codeforces Round #100: problem analysis | 1800 | |
| 423 | New Year Snowflake | geometry sortings | Statement | F | Codeforces Round 100 {140} | PROGRAMMING | Codeforces Round #100: problem analysis | 2600 | |
| 1078 | New Year Garland | combinatorics dp | Statement | E | Codeforces Round 100 {140} | PROGRAMMING | Codeforces Round #100: problem analysis | 2600 | |
| 5830 | Hopscotch | geometry math | Statement | B | Codeforces Round 101 (Div. 2) {141} | PROGRAMMING | Codeforces Round #101 (Div. 2) Разбор Задач. | 1400 | |
| 2751 | Queue | constructive algorithms greedy sortings | Statement | C | Codeforces Round 101 (Div. 2) {141} | PROGRAMMING | Codeforces Round #101 (Div. 2) Разбор Задач. | 1800 | |
| 1239 | Take-off Ramps | graphs shortest paths | Statement | D | Codeforces Round 101 (Div. 2) {141} | PROGRAMMING | Codeforces Round #101 (Div. 2) Разбор Задач. | 2400 | |
| 1392 | Clearing Up | constructive algorithms dp dsu graphs | Statement | E | Codeforces Round 101 (Div. 2) {141} | PROGRAMMING | Codeforces Round #101 (Div. 2) Разбор Задач. | 2600 | |
| 103579 | Amusing Joke | implementation sortings strings | Statement | A | Codeforces Round 101 (Div. 2) {141} | PROGRAMMING | Codeforces Round #101 (Div. 2) Разбор Задач. | 900 | |
| 2864 | Help Farmer | brute force math | Statement | A | Codeforces Round 102 (Div. 1) {142} | PROGRAMMING | Codeforces Round #102 — Editorial | 1700 | |
| 2416 | Help General | constructive algorithms greedy implementation | Statement | B | Codeforces Round 102 (Div. 1) {142} | PROGRAMMING | Codeforces Round #102 — Editorial | 1900 | |
| 1012 | Help Caretaker | brute force dp | Statement | C | Codeforces Round 102 (Div. 1) {142} | PROGRAMMING | Codeforces Round #102 — Editorial | 2300 | |
| 433 | Help Shrek and Donkey 2 | games | Statement | D | Codeforces Round 102 (Div. 1) {142} | PROGRAMMING | Codeforces Round #102 — Editorial | 2600 | |
| 138 | Help Greg the Dwarf 2 | geometry | Statement | E | Codeforces Round 102 (Div. 1) {142} | PROGRAMMING | Codeforces Round #102 — Editorial | 3000 | |
| 15596 | Help Vasilisa the Wise 2 | brute force math | Statement | A | Codeforces Round 102 (Div. 2) {143} | PROGRAMMING | Codeforces Round #102 (Div. 2) | 1200 | |
| 5370 | Help Kingdom of Far Far Away 2 | implementation strings | Statement | B | Codeforces Round 102 (Div. 2) {143} | PROGRAMMING | Codeforces Round #102 - Editorial | 1200 | |
| 5729 | Meeting | implementation | Statement | B | Codeforces Round 103 (Div. 2) {144} | PROGRAMMING | Codeforces Round #103 (Div. 2) Разбор Задач. | 1300 | |
| 4277 | Anagram Search | implementation strings | Statement | C | Codeforces Round 103 (Div. 2) {144} | PROGRAMMING | Codeforces Round #103 (Div. 2) Разбор Задач. | 1500 | |
| 5195 | Missile Silos | data structures dfs and similar graphs shortest paths | Statement | D | Codeforces Round 103 (Div. 2) {144} | PROGRAMMING | Codeforces Round #103 (Div. 2) Разбор Задач. | 1900 | |
| 701 | Competition | data structures greedy | Statement | E | Codeforces Round 103 (Div. 2) {144} | PROGRAMMING | Codeforces Round #103 (Div. 2) Разбор Задач. | 2300 | |
| 124346 | Arrival of the General | implementation | Statement | A | Codeforces Round 103 (Div. 2) {144} | PROGRAMMING | Codeforces Round #103 (Div. 2) Разбор Задач. | 900 | |
| 7987 | Lucky Conversion | greedy implementation | Statement | A | Codeforces Round 104 (Div. 1) {145} | PROGRAMMING | Codeforces Round #104 - Editorial | 1300 | |
| 2441 | Lucky Number 2 | constructive algorithms | Statement | B | Codeforces Round 104 (Div. 1) {145} | PROGRAMMING | Codeforces Round #104 - Editorial | 1800 | |
| 2206 | Lucky Subsequence | combinatorics dp math | Statement | C | Codeforces Round 104 (Div. 1) {145} | PROGRAMMING | Codeforces Round #104 - Editorial | 2200 | |
| 4121 | Lucky Queries | data structures | Statement | E | Codeforces Round 104 (Div. 1) {145} | PROGRAMMING | Codeforces Round #104 - Editorial | 2400 | |
| 295 | Lucky Pair | combinatorics data structures implementation | Statement | D | Codeforces Round 104 (Div. 1) {145} | PROGRAMMING | Codeforces Round #104 - Editorial | 2800 | |
| 17245 | Lucky Ticket | implementation | Statement | A | Codeforces Round 104 (Div. 2) {146} | PROGRAMMING | Codeforces Round #104 (Div. 2) | 1000 | |
| 5012 | Lucky Mask | brute force implementation | Statement | B | Codeforces Round 104 (Div. 2) {146} | PROGRAMMING | Codeforces Round #104 (Div. 2) | 1300 | |
| 4275 | Punctuation | implementation strings | Statement | A | Codeforces Testing Round 4 {147} | PROGRAMMING | 1300 | ||
| 994 | Smile House | binary search graphs matrices | Statement | B | Codeforces Testing Round 4 {147} | PROGRAMMING | 2300 | ||
| 6059 | Escape | implementation math | Statement | B | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 1500 | |
| 3395 | Terse princess | constructive algorithms greedy | Statement | C | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 1700 | |
| 9286 | Bag of mice | dp games math probabilities | Statement | D | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 1900 | |
| 4960 | Porcelain | dp | Statement | E | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 2000 | |
| 114486 | Insomnia cure | constructive algorithms implementation math | Statement | A | Codeforces Round 105 (Div. 2) {148} | PROGRAMMING | Codeforces Round #105 (Div. 2): editorial | 900 | |
| 46798 | Business trip | greedy implementation sortings | Statement | A | Codeforces Round 106 (Div. 2) {149} | PROGRAMMING | Codeforces Round #106 (Div. 2) Tutorial | 1100 | |
| 5782 | Division into Teams | greedy math sortings | Statement | C | Codeforces Round 106 (Div. 2) {149} | PROGRAMMING | Codeforces Round #106 (Div. 2) Tutorial | 1500 | |
| 2402 | Martian Clock | implementation | Statement | B | Codeforces Round 106 (Div. 2) {149} | PROGRAMMING | Editorial Round #106 | 1600 | |
| 2569 | Martian Strings | string suffix structures strings | Statement | E | Codeforces Round 106 (Div. 2) {149} | PROGRAMMING | Codeforces Round #106 (Div. 2) Tutorial | 2200 | |
| 4750 | Coloring Brackets | dp | Statement | D | Codeforces Round 106 (Div. 2) {149} | PROGRAMMING | Editorial Round #106 | 2200 | |
| 8680 | Win or Freeze | games math number theory | Statement | A | Codeforces Round 107 (Div. 1) {150} | PROGRAMMING | Tutorial | 1600 | |
| 5483 | Quantity of Strings | combinatorics dfs and similar graphs math | Statement | B | Codeforces Round 107 (Div. 1) {150} | PROGRAMMING | Tutorial | 1800 | |
| 772 | Smart Cheater | data structures math probabilities | Statement | C | Codeforces Round 107 (Div. 1) {150} | PROGRAMMING | Tutorial | 2300 | |
| 767 | Mission Impassable | dp strings | Statement | D | Codeforces Round 107 (Div. 1) {150} | PROGRAMMING | Tutorial | 2600 | |
| 1067 | Freezing with Style | binary search data structures divide and conquer trees | Statement | E | Codeforces Round 107 (Div. 1) {150} | PROGRAMMING | Tutorial | 3000 | |
| 6907 | Phone Numbers | implementation strings | Statement | B | Codeforces Round 107 (Div. 2) {151} | PROGRAMMING | Codeforces Round #107. Tutorial. | 1300 | |
| 97084 | Soft Drinking | implementation math | Statement | A | Codeforces Round 107 (Div. 2) {151} | PROGRAMMING | Codeforces Round #107. Tutorial. | 900 | |
| 18780 | Marks | implementation | Statement | A | Codeforces Round 108 (Div. 2) {152} | PROGRAMMING | Разбор задач Codeforces Round #108 (Div. 2) | 1100 | |
| 7456 | Steps | binary search implementation | Statement | B | Codeforces Round 108 (Div. 2) {152} | PROGRAMMING | Разбор задач Codeforces Round #108 (Div. 2) | 1400 | |
| 11710 | Pocket Book | combinatorics | Statement | C | Codeforces Round 108 (Div. 2) {152} | PROGRAMMING | Разбор задач Codeforces Round #108 (Div. 2) | 1500 | |
| 599 | Garden | bitmasks dp graphs trees | Statement | E | Codeforces Round 108 (Div. 2) {152} | PROGRAMMING | Разбор задач Codeforces Round #108 (Div. 2) | 2400 | |
| 266 | Frames | brute force | Statement | D | Codeforces Round 108 (Div. 2) {152} | PROGRAMMING | Разбор задач Codeforces Round #108 (Div. 2) | 2500 | |
| 951 | A + B | *special | Statement | A | Surprise Language Round 5 {153} | PROGRAMMING | Surprise Language Round #5: разбор задач | 1600 | |
| 168 | Binary notation | *special | Statement | B | Surprise Language Round 5 {153} | PROGRAMMING | Surprise Language Round #5: разбор задач | 1800 | |
| 84 | Euclidean Distance | *special | Statement | E | Surprise Language Round 5 {153} | PROGRAMMING | Surprise Language Round #5: разбор задач | 2200 | |
| 415 | Caesar Cipher | *special | Statement | C | Surprise Language Round 5 {153} | PROGRAMMING | Surprise Language Round #5: разбор задач | 2200 | |
| 90 | Date Change | *special | Statement | D | Surprise Language Round 5 {153} | PROGRAMMING | Surprise Language Round #5: разбор задач | 2300 | |
| 4347 | Hometask | greedy | Statement | A | Codeforces Round 109 (Div. 1) {154} | PROGRAMMING | Codeforces Round #109: editorial | 1700 | |
| 6257 | Colliders | math number theory | Statement | B | Codeforces Round 109 (Div. 1) {154} | PROGRAMMING | Codeforces Round #109: editorial | 1700 | |
| 512 | Flatland Fencing | games math | Statement | D | Codeforces Round 109 (Div. 1) {154} | PROGRAMMING | Codeforces Round #109: editorial | 2300 | |
| 3436 | Double Profiles | graphs hashing sortings | Statement | C | Codeforces Round 109 (Div. 1) {154} | PROGRAMMING | Codeforces Round #109: editorial | 2300 | |
| 122 | Martian Colony | geometry | Statement | E | Codeforces Round 109 (Div. 1) {154} | PROGRAMMING | Codeforces Round #109: editorial | 2900 | |
| 11001 | Combination | greedy sortings | Statement | B | Codeforces Round 109 (Div. 2) {155} | PROGRAMMING | Codeforces Round #109: editorial | 1200 | |
| 95456 | I_love_\%username\% | brute force | Statement | A | Codeforces Round 109 (Div. 2) {155} | PROGRAMMING | Codeforces Round #109: editorial | 900 | |
| 3278 | Message | brute force | Statement | A | Codeforces Round 110 (Div. 1) {156} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 1700 | |
| 2484 | Suspects | constructive algorithms data structures implementation | Statement | B | Codeforces Round 110 (Div. 1) {156} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 1800 | |
| 2673 | Cipher | combinatorics dp | Statement | C | Codeforces Round 110 (Div. 1) {156} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 2100 | |
| 2129 | Clues | combinatorics graphs | Statement | D | Codeforces Round 110 (Div. 1) {156} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 2400 | |
| 208 | Mrs. Hudson's Pancakes | brute force dp | Statement | E | Codeforces Round 110 (Div. 1) {156} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 2900 | |
| 14273 | Trace | geometry sortings | Statement | B | Codeforces Round 110 (Div. 2) {157} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 1100 | |
| 8714 | Game Outcome | brute force | Statement | A | Codeforces Round 110 (Div. 2) {157} | PROGRAMMING | Codeforces Round 110 — Разбор задач | 1100 | |
| 105884 | Taxi | *special greedy implementation | Statement | B | VK Cup 2012 Qualification Round 1 {158} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 1800 | |
| 329183 | Next Round | *special implementation | Statement | A | VK Cup 2012 Qualification Round 1 {158} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 1800 | |
| 6535 | Ice Sculptures | *special brute force number theory | Statement | D | VK Cup 2012 Qualification Round 1 {158} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 1900 | |
| 10527 | Cd and pwd commands | *special data structures implementation | Statement | C | VK Cup 2012 Qualification Round 1 {158} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 1900 | |
| 1545 | Phone Talks | *special dp sortings | Statement | E | VK Cup 2012 Qualification Round 1 {158} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 2300 | |
| 2669 | Friends or Not | *special greedy implementation | Statement | A | VK Cup 2012 Qualification Round 2 {159} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 1700 | |
| 4211 | Matchmaker | *special greedy sortings | Statement | B | VK Cup 2012 Qualification Round 2 {159} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 1800 | |
| 3224 | String Manipulation 1.0 | *special binary search brute force data structures strings | Statement | C | VK Cup 2012 Qualification Round 2 {159} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 2000 | |
| 4710 | Palindrome pairs | *special brute force dp strings | Statement | D | VK Cup 2012 Qualification Round 2 {159} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 2000 | |
| 1101 | Zebra Tower | *special data structures greedy sortings | Statement | E | VK Cup 2012 Qualification Round 2 {159} | PROGRAMMING | Simple solution to vk cup Qualification Round 1 and 2 | 2100 | |
| 147467 | Twins | greedy sortings | Statement | A | Codeforces Round 111 (Div. 2) {160} | PROGRAMMING | Codeforces Round #111 (Div. 2) Разбор Задач | 1000 |